Damper.



W. J. MORELAND.

DAMPER.

APPLICATION FILED MAR. 28, 1911.

Patented Apr. 30, 1912.

IIIIIIIIIIIIIIIIIII" WITNESSES.

ATTORNEYS UNITED STATES PATENT OFFICE.

WILLIS J. MORE-LAND, 0F MOTTVILLE, NEW YORK.

DAMPER.

To all whom it may concern:

Be it known that I, WILLIS J. MoREnANn, a citizen of the United States,and a resident of Mottville, in the county of Onondaga and State of New York, have invented a new and Improved Damper, of which the following is a full, clear, and exact description. The object of my invention is to provide an improved form of damper for furnaces or other heating plants by means of which the furnace draft may be carefully governed, the damper being especially adapted for operation in parts of the house remote therefrom. The invention consists in the combination with the furnace flue of the damper constructed and operating as will be fully described and pointed out in the claims.

eference is to be had to the accompanying drawings forming a part of this specification, in which like characters of reference denote corresponding parts in all the views, and in which Figure 1 is a side view, partly in section, showing a furnace flue equipped with my invention. Fig. 2 is a side view, partly in section, of the damper casing showing the damper thereon in mid-position; Fig. 3 is a perspective view of the damper and its casmg.

My invention comprises a damper casing 1, preferably of rectangular construction, provided with a plurality of openings in the sides thereof; the opening 2 in the top being adapted for communication with the combustion chamber 3 of the furnace 4; the opening 5 in the bottom being adapted for communication with the ash pit 6 of the furnace at and the opening 7 in one side of the casing 1 being adapted for communication with the chimney flue 8. The side of the casing opposite the opening 7 is provided with openings 9, which are adapted to be closed more or less by the damper 10 carried by the side of the damper casing, this damper serving the purpose of an intake means for an air supply.

The damper plate 11 is suitably pivoted between opposite sides of the casing as at 12 and occupies a substantially central position therein; the length of the damper plate 11 depends on the size of the damper casing 1 and in every case the length will be sufficient to bring the lower end below the bottom of the opening of the chimney flue 8 when the damper is in the position shown in Fig. 1, which length being sufficient to Specification of Letters Patent.

Application filed March 28, 1911.

Patented Apr. 30, 1912.

Serial No. 617,384.

bring the upper portion of the damper plate above the upper end of the opening of the damper flue 8 when the damper plate is moved to the position shown in dotted lines in Fig. 2.

One end of the supporting means 12 of the damper plate is provided with a rigidly attached lever 13 having a weighted portion 1 1 attached adjacent the outer end thereof, the said outer end being provided with an opening 15 for engagement with a chain or wire 16 extending upwardly and through the floor into the room above; the upper end of the chain or wire 16 is provided with a ring 17 adapted for engagement with any one of a plurality of supporting lugs 18 carried on a base plate 19.

The operation of my device is as follows :-In the position shown in Fig. 1 it is apparent that the air supply entering the combustion chamber will pass therethrough and out through the opening 2 past the damper plate 11 and into the chimney flue 8; this position of the damper provides for the air entering the combustion chamber to pass up through the bed of coals and into the chimney. When the dam-per is moved to the position shown in dotted lines in Fig. 2 the supply of air entering the furnace, usually through the ash pit door, will pass on through the ash pit and out the opening 5 leading therefrom, past the damper plate 11 and into the chimney flue 8; in this position of the damper the air in circulating through the furnace does not pass through the bed of coals, hence the fire is checked. The normal position of the damper, when left to itself, is as shown in Fig. 1, by reason of the weighted portion 14 on the free end of the lever 13. The damper is brought to. the position shown in full lines, or in dotted lines in Fig. 2, by pulling upwardly on the chain or wire 16 and bringing the ring 17 at the upper end thereof into engagement with any one of the lugs 18 on the base plate 19. The extreme position of the damper having been described, one position insuring a full check on the fire, and the other iposltion insuring the maximum of draft to the fire, it is obvious that various degrees of regulation may be obtained by bringing the damper into position between these two extremes. The openings 9 in one side of the damper casing 1, which openings may be regulated by means of the damper 10, serve as aconvenient intake for the air supply exclusive of an intake through the ash pit door; from %ig. -1 it will-be seen, the ppenings 9 being at their maximum, that an air supply enteringthrough these openings will pass downwardly through the" damper caslng into the ash pit, through the live bed of coals, up and outwardly past the damper and into the dummy flue 8.

lVhile I have shown my damper of a par ticular construction, it is obvious that the form, shape and size of the same may be largely varied, depending on particular conditions, without departing from the inventive idea as set forth in the following claims.

Having thus described my invention, 1 claim as new, and desire to secure by Letters Patent:

1. The combination with a furnace, of a casing having one end connected with the combustion chamber of the furnace and the other end with the ash pit of the furnace, said casing being provided with oppositely arranged openings in its sides, a chimney flue connected with one of the said openings, a damper in the other opening, and a damper pivoted in the casing opposite the side openings thereof and of a length greater than the diameter of the chimney flueopening and the damper opening.

2. A device of the class described, comprising,a casing having open ends for connection with the combust on chamber and ash pit of a furnace and provided in its sides with oppositely arranged openings,

one for connection with a chimney flue, a damper in the other side opening, and a damper pivoted in the casing opposite the side openings thereof and of a length greater than the diameter of said openings. In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

WILLIS J. MORELAND. Witnesses:

THOMAS H. WHEAToN, Josnrn S. HALLUN. 

